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In August 1973 Ham Radio, WA0JYK used a digital phase shifter in a 75m SSB phasing type receiver that only required the clock to only be divided by 2 instead of 4. The chips were ECL D type Flip

YES!!! I want one badly! Let me know when. WH6BXK

The 74hc74 is made to divide by two by connecting it's /Q output to the data pin. in turn the Q output becomes the clock for the next stage. This has the inherent problem that the second counter

Hi Oliver, Did some more digging in the archives here. I found a message from KD5NWA <kd5nwa@...>, who suggested the timing could be improved with the use of a 74AC109 JK flip flop because it's

wrote: That sounds like a good choice. I think the main reason SDL never seemed like a candidate before is merely that it has its own thread and event API, and it's kind of dangerous to start mixing

--- In softrock40@..., "Leon Heller" <leon.heller@b...> wrote: Hello Leon ! > Farnell has them in stock. In the german dse-electronic FAQ they say that Farnell will only Ship to

--- In softrock40@..., KY1K <ky1k@p...> wrote: [...] > > Regarding the op amp substitution, you might look at the LT1115 op > amp, which is shown in the QEX series on the SDR-1000 written

Hi Frank, Yes, thats a good idea to keep things under control resource wise. I probably should allow the user to pick either a text based meter or an analog one (if I add it). This morning I took

Thanks Bill and Cecil. I will hopefully have a simple gnuradio program to use with softrock40. I have got the ssb_demod running. Have to figure out afew more things to make it more complete. Thanks

That will be really great. Thanks Frank.

I've got some IQ files from and SDR 1000 demo CD put out at Dayton - they are on: http://tracey.org/wjt/sdr1k/iq/ Pretty large files (17 meg is the smallest, 251 meg the largest). Bill

I'll put up some more later, some are huge, the 80 meter one is 180 Megs, I have some of a 40 meter contest that I will put up later, it's wall to wall signals. <

I'm building a very simple DSB Tx using an SA602 with a 3.6864 Mz crystal. 4 x 3.6864 = 14.7456 and crystals on that frequency aren't all that hard to find (both frequencies are used for UART

Thanks for the file and sorry. I pasted the wrong email id into the the "to" field. 73 Ramakrishnan -- 73 - Ramakrishnan, VU3RDD

http://www.flex-radio.com/download_files/PowerSDR/wav/ 73 Frank AB2KT <vu3rdd@g...> wrote:

Hi Cecil, I am working on a simple commandline demodulator for softrock40 using gnuradio. I haven't yet assembled my kit yet. Do you have a recording of the I and Q samples from the soundcard input,

Phil: I think this is nearly ideal for the softrock 40. It is a much better fit than all of PowerSDR with all of its code for transmit, etc. and managing features that are nonexistent on the

Hi all, I posted an update at http://www.philcovington.com/SDR.html Also, I added a blog entry on 10/12/2005 at http://pcovington.blogspot.com/ that describes how to manually calibrate the Image

This sounds very interesting Tony. Please count me in for at least 1 (perhaps 2). 72/73 Peder Haugaard-Pedersen SM0GNS